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Greater Ionic Character?

Posted: Tue Nov 06, 2018 12:46 pm
by Emma Randolph 1J
How do you know which compound has a greater ionic character or not? For example on the homework 2d.5, it's asking which has a greater ionic character HCl or HI but I'm not sure how to tell.

Re: Greater Ionic Character?  [ENDORSED]

Posted: Tue Nov 06, 2018 1:04 pm
by Krista Mercado 1B
You can determine this by looking at the difference in the electronegativity of the atoms involved in the bond. The bond with a greater difference in electronegativity has a greater ionic character.

Re: Greater Ionic Character?

Posted: Tue Nov 06, 2018 2:35 pm
by Noh_Jasmine_1J
usually the distance between the 2 atoms will be useful. if they are further apart that means they will have greater ionic character because the electronegativity is greater

Re: Greater Ionic Character?

Posted: Tue Nov 06, 2018 5:26 pm
by Andonios Karas 4H
And if you need a reference for the electronegativity of each atom that the book is basing its solutions off of, look at figure 2D.2 in the 7th edition.

IMG_0506.jpg

Going by what Krista pointed out, we can see whether that HCl (difference in electronegativity is 0.96) has more ionic character than HI (difference in electronegativity of 0.46).